package com.zbs.test.utils;
 
 

import java.util.TimerTask;
import java.util.concurrent.ScheduledThreadPoolExecutor;
import java.util.concurrent.TimeUnit;

/**
 * @Description : 异步任务管理器
 */
public class AsyncManager {

    /**
     * 操作延迟10毫秒
     */
    private final int OPERATE_DELAY_TIME = 10;

    /**
     * 异步操作任务调度线程池
     */
    private final ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(5);
 
 
    /**
     * 单例模式
     */
    private volatile static AsyncManager asyncManager;
 
 
    private AsyncManager(){
 
    }
 
    public static AsyncManager getInstance() {
        if (null == asyncManager) {
            synchronized (AsyncManager.class) {
                if (null == asyncManager) {
                    asyncManager = new AsyncManager();
                }
            }
        }
        return asyncManager;
    }
 
    /**
     * 执行任务
     *
     * @param task 任务
     */
    public void execute(TimerTask task) {
        executor.schedule(task, OPERATE_DELAY_TIME, TimeUnit.MILLISECONDS);
    }
 
    /**
     * 停止任务线程池
     */
    public void shutdown() {
        ThreadUtils.shutdownAndAwaitTermination(executor);
    }
 
}